# Airworthiness Directives; CFM International, S.A. CFM56 Series Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 2006-12-19 · Effective 2007-01-03 · 71 FR 75854
## Document
- **Document number:** E6-21485
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 71 FR 75854
- **Publication date:** 2006-12-19
- **Effective date:** 2007-01-03
- **FAA docket:** Docket No. FAA-2006-26502
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain CFM International CFM56 Series turbofan engines. This AD requires replacing certain fuel filters manufactured under parts manufacturer approvals (PMA). This AD results from 12 reports of failed fuel filters. We are issuing this AD to prevent the loss of engine thrust that could result in loss of control during takeoff or landing.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/12/19/E6-21485/airworthiness-directives-cfm-international-sa-cfm56-series-turbofan-engines)
---
*AI Analytics · CC0 1.0*